Move utils.h and utils.cc from runtime/vm to runtime/platform

runtime/vm/growable_array.h

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 // Defines growable array classes, that differ where they are allocated:
 // - GrowableArray: allocate on stack.
 // - ZoneGrowableArray: allocated in the zone.
 
 #ifndef VM_GROWABLE_ARRAY_H_
 #define VM_GROWABLE_ARRAY_H_
 
+#include "platform/utils.h"
 #include "vm/allocation.h"
 #include "vm/isolate.h"
-#include "vm/utils.h"
 #include "vm/zone.h"
 
 namespace dart {
 
 template<typename T, typename B>
 class BaseGrowableArray : public B {
  public:
   BaseGrowableArray() : length_(0), capacity_(0), data_(NULL), zone_(NULL) {
     ASSERT(Isolate::Current() != NULL);
     zone_ = Isolate::Current()->current_zone();
@@ skipping 100 matching lines @@
 class ZoneGrowableArray : public BaseGrowableArray<T, ZoneAllocated> {
  public:
   explicit ZoneGrowableArray(int initial_capacity)
       : BaseGrowableArray<T, ZoneAllocated>(initial_capacity) {}
   ZoneGrowableArray() : BaseGrowableArray<T, ZoneAllocated>() {}
 };
 
 }  // namespace dart
 
 #endif  // VM_GROWABLE_ARRAY_H_